Tellurium dioxide
ALDRICH/204552 - 99.995% trace metals basis
Synonym: Telluria; Tellurium (IV) oxide; Tellurium oxide
CAS Number: 7446-07-3
Empirical Formula (Hill Notation): O2Te
Molecular Weight: 159.60
EC Number: 231-193-1
MDL Number: MFCD00011263
Linear Formula: TeO2
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 204552-10G
This image depicts SKU: 204552-10G
| assay | 99.995% trace metals basis |
| density | 5.67 g/mL at 25 °C (lit.) |
| InChI | 1S/O2Te/c1-3-2 |
| InChI key | LAJZODKXOMJMPK-UHFFFAOYSA |
| mp | 733 °C (lit.) |
| Quality Level | 100  |
| SMILES string | O=[Te]=O |
| Application: | Tellurium dioxide can be used:• As a seed layer to fabricate hole-extracting electrodes in an organic photovoltaic device. The addition of TeO2 enhances the optical transmittance of the electrode. • As a starting material to prepare tellurite glasses for gamma radiation shielding and other optical applications. |
| General description: | Telluriumdioxide, also known as tellurium(IV) oxide, is a white powder with a melting point of 733 °C. TeO2 is characterized by its unique propertiesand is widely used in various applications, including optics, electronics, andas a precursor for the synthesis of tellurium-based materials. It is recognized for its strong optical characteristics and is employed in the production of optical fibers and other photonic devices. Additionally, it plays a crucial role in the preparation of diverse tellurium compounds for various chemical transformations. Our high-purity tellurium dioxide powder is distinguished by its low impurity levels, making it particularly suitable for sensitive electronic applications. |
| Packaging: | 10, 50 g in poly bottle |
| Symbol |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H317 - H332 - H360D - H411 |
| Precautionary statements | P202 - P273 - P280 - P302 + P352 - P304 + P340 + P312 - P308 + P313 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.995% trace metals basis |
| mp | 733 °C (lit.) |
| Density | 5.67 g/mL at 25 °C (lit.) |
| UNSPSC | 12352303 |